转：https://blog.csdn.net/JamieCheung/article/details/80163986
// 点击div框外，关闭div
$(‘#productDetailDiv‘).click(function(event) {
$(‘#productDetailDiv‘).hide();
});
$("#addprodtocar").click(function() {
event.stopPropagation(); // 阻止事件向上冒泡
});
原文：https://www.cnblogs.com/yyy251/p/11988001.html